4
Reverse Osmosis System Layout and Components (continued):
PUN4RO
Filter Stage Part Number Description Service Life Filter Color Code
1st PUNSED Sediment Filter 6 Months Yellow Dot
2nd PUNCRB Carbon Block Filter 6 Months Green Dot
3rd PUNROM Reverse Osmosis Membrane 24 Months N/A
4th PROPF Granular Activated Carbon (GAC) Polishing Filter 6 Months N/A
Replacement Parts
1/4" Yellow
Storage Tank
Auto Shut-Off Valve
Drain Flow
Regulator
1/4" Black
Valve
Drain
Clamp
Drain Cold
Water
Supply
3/8"
Black
1/4" Red
1/4" Blue
1st
Stage
2nd
Stage
3rd
Stage
4th Stage
Faucet